| PhD Seminar

Name of the Speaker: Ms. Jaswanthi Mandalapu (EE19D700)
Guide: Prof. Krishna Jagannathan
Venue: ESB-244 (Seminar Hall)
Date/Time: 12th September 2024 (Thursday), 2:00 PM
Title: Capacity Approaching Codes for Classical and Classical-Quantum Markovian Channels

Abstract :

In this talk, we first consider a queue-channel model that captures the waiting time-dependent degradation of information bits as they wait to be transmitted. Such a scenario arises naturally in quantum communications, where quantum bits tend to decohere rapidly. Trailing the capacity results obtained recently for certain queue-channels, we aim to construct practical channel codes for the erasure queue-channel (EQC) -- a channel characterized by highly correlated erasures, governed by the underlying queuing dynamics. Specifically, we show that standard Arıkan's Polar transform polarizes the M/M/1 EQC. Next, we consider a classical-quantum Markovian channel and show that the existing polar transform can polarize the channel for erasure noise when the underlying Markov chain is Finite-state, Aperiodic, and Irreducible.